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Finding the Fourth Proportional to 671,645.45, 927,486.45 and 426,709.35

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Solution

The fourth proportional to 671,645.45, 927,486.45 and 426,709.35 is: 589,250.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,645.45 : 927,486.45 = 426,709.35 : x
  2. Step 2: Convert to fraction form
    671,645.45/927,486.45 = 426,709.35/x
  3. Step 3: Cross multiply
    671,645.45x = 927,486.45 × 426,709.35
  4. Step 4: Simplify right side
    671,645.45x = 395,767,140,213.31
  5. Step 5: Solve for x
    x = 395,767,140,213.31/671,645.45
  6. Step 6: Final answer
    x = 589,250.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.